ON THE STEADY-STATE SHIP HULL RESPONSE

In the treatment of ship hull vibrations, ship designers have resorted to one of two basic strategies, which may be summarized in the simple rules: Avoid resonances or Reduce excitation. Evidently, both methods, narrowly interpreted, lead into blind alleys. To derive rational design criteria, response and excitation must be combined. In view of the recent advances in the state of the art, we may now reexamine the feasibility of steady-state response analysis and encourage the practicing naval architect to note these developments. This is the main purpose of the present paper. The paper concentrates on propeller-excited blade- frequency hull vibrations, which are of foremost importance, and discusses the format of a rational design selection process based on a steady-state response analysis.

• Supplemental Notes:
  • Presented to Sociedade Brasileira de Engenharia Naval, Rio de Janeiro, Brazil, August, 1968
• Corporate Authors:

  University of Michigan, Ann Arbor

  Department of Naval Architects and Marine Engineers
  Ann Arbor, MI  United States  48109
• Authors:
  • Nowacki, Horst
• Publication Date: 1968-8

Media Info

• Features: Figures; References;
• Pagination: 24 p.
• Serial:
  • Issue Number: 010

Subject/Index Terms

• TRT Terms: Hulls; Propellers; Vibration
• Old TRIS Terms: Hull response; Hull vibration; Propeller vibration
• Subject Areas: Design; Environment; Marine Transportation;

Filing Info

• Accession Number: 00007026
• Record Type: Publication
• Files: TRIS
• Created Date: Nov 25 1972 12:00AM